Tester

Abstract

The tester comprises a box body, a pumping assembly and an electromagnetic stirrer, the box body is provided with a first cavity and a second cavity, the second cavity is arranged at the bottom of the first cavity, and a first partition plate and a second partition plate which are arranged at intervals are arranged in the first cavity so as to limit a high-temperature cavity, a test cavity and a low-temperature cavity which are arranged side by side; the pumping assembly comprises a water return pipe, a high-temperature pipe, a low-temperature pipe and a first water pump, the first water pump is arranged in the second cavity, the water return pipe is used for communicating the first water pump with the test cavity, the high-temperature pipe is used for communicating the first water pump with the high-temperature cavity, and the low-temperature pipe is used for communicating the first water pump with the low-temperature cavity; and the two electromagnetic stirrers are respectively arranged in the high-temperature cavity and the low-temperature cavity. The tester device provided by the embodiment of the utility model has the advantages of compact structure, convenience in operation, high automation degree and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing test equipment, and in particular to a testing instrument. Background Technology

[0002] Delineators can indicate the direction of the road. At night or in poor visibility, they clearly outline the edges and direction of the road, helping drivers understand the road's alignment, such as the location of curves and inclines / declines, so that they can prepare for driving in advance.

[0003] The sealing performance of reflectors is one of the most important technical indicators for delineators (microprism type). Due to the rough manufacturing process, this indicator also has the lowest pass rate for this type of product. Once the sealing performance of the product fails, water or fog can seep into the microprism during use, causing it to lose its reflective properties and its visual guidance function, thereby reducing driving safety. In existing technologies, testing reflectors requires manual operation, which is inefficient. Therefore, there is an urgent need for a device that can test the sealing performance of reflectors. Utility Model Content

[0004] This invention provides a testing instrument to address the shortcomings of low efficiency in manual testing in the prior art.

[0005] An embodiment of this utility model discloses a testing instrument, comprising:

[0006] The enclosure has a first cavity and a second cavity, the second cavity being located at the bottom of the first cavity. The first cavity is provided with a first partition and a second partition arranged at intervals to restrict the high-temperature cavity, the test cavity, and the low-temperature cavity arranged side by side. The first partition is provided with a first solenoid valve, and the second partition is provided with a second solenoid valve.

[0007] A pumping assembly, comprising a return water pipe, a high-temperature pipe, a low-temperature pipe, and a first water pump, wherein the first water pump is disposed in the second cavity, the return water pipe is used to connect the first water pump and the test cavity, the high-temperature pipe is used to connect the first water pump and the high-temperature cavity, and the low-temperature pipe is used to connect the first water pump and the low-temperature cavity;

[0008] An electromagnetic stirrer, wherein there are two electromagnetic stirrers, and the two electromagnetic stirrers are respectively located in the high-temperature chamber and the low-temperature chamber.

[0009] In some embodiments, the testing apparatus includes:

[0010] A sample fixing plate is disposed inside the test chamber, and the sample fixing plate is spaced apart from the bottom wall of the test chamber;

[0011] The drain outlet is located on the bottom wall of the test chamber and below the sample fixing plate. The return water pipe is connected to the test chamber through the drain outlet.

[0012] In some embodiments, the high-temperature tube includes:

[0013] The first section is located inside the second cavity and is connected to the first water pump;

[0014] The second segment has one end connected to the first segment, and the other end of the second segment extends into the high-temperature cavity after passing through the bottom wall of the high-temperature cavity, and the second segment is sealed to the bottom wall of the high-temperature cavity.

[0015] In some embodiments, the cryogenic tube includes:

[0016] The third section is located inside the second cavity and is connected to the first water pump;

[0017] The fourth segment has one end connected to the third segment, and the other end of the fourth segment extends into the low-temperature cavity after passing through the bottom wall of the low-temperature cavity, and the fourth segment is sealed to the bottom wall of the low-temperature cavity.

[0018] In some embodiments, the testing apparatus includes a circulation assembly, the circulation assembly comprising:

[0019] Second water pump;

[0020] The first pipe is located inside the test chamber and is connected to the second water pump;

[0021] The second pipe is connected to the second water pump. Both the second pipe and the second water pump are located inside the high-temperature chamber, or both the second pipe and the second water pump are located inside the low-temperature chamber.

[0022] In some embodiments, the testing instrument includes a heating element and a first temperature sensor, both of which are disposed within the high-temperature chamber.

[0023] In some embodiments, the testing instrument includes a cooling element and a second temperature sensor, both of which are disposed within the low-temperature cavity.

[0024] In some embodiments, the pumping assembly includes:

[0025] A third solenoid valve is installed on the high-temperature tube;

[0026] The fourth solenoid valve is located on the cryogenic tube.

[0027] In some embodiments, the testing apparatus includes:

[0028] A lid, which is rotatably connected to the housing;

[0029] An electric push rod, one end of which is rotatably connected to the cover and the other end of which is rotatably connected to the box.

[0030] In some embodiments, the testing instrument includes thermal insulation cotton, and the thermal insulation cotton is provided on the surface of any one of the cover, the box, the first partition and the second partition.

[0031] The testing apparatus of this utility model has the advantages of compact structure, convenient operation, and high degree of intelligence. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the testing instrument provided by this utility model.

[0034] Figure label:

[0035] 100. Testing equipment;

[0036] 1. Chamber; 11. First cavity; 111. First partition; 112. Second partition; 113. High-temperature cavity; 1131. Heating element; 1132. First temperature sensor; 114. Test cavity; 1141. Third temperature sensor; 115. Low-temperature cavity; 1151. Cooling element; 1152. Second temperature sensor; 12. Second cavity;

[0037] 2. Pumping assembly; 21. Return water pipe; 22. High temperature pipe; 221. First section; 222. Second section; 23. Low temperature pipe; 231. Third section; 232. Fourth section; 24. First water pump;

[0038] 3. Electromagnetic stirrer;

[0039] 41. First solenoid valve; 42. Second solenoid valve; 43. Third solenoid valve; 44. Fourth solenoid valve;

[0040] 5. Sample fixing plate; 6. Drain outlet;

[0041] 71. Second water pump; 72. First pipe; 73. Second pipe;

[0042] 8. Cover; 9. Controller. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0044] The testing instrument 100 of this utility model embodiment includes a housing 1, a pumping assembly 2, and an electromagnetic stirrer 3.

[0045] The chamber 1 has a first cavity 11 and a second cavity 12. The second cavity 12 is located at the bottom of the first cavity 11. The first cavity 11 is provided with a first partition 111 and a second partition 112 arranged at intervals to restrict the high temperature cavity 113, the test cavity 114 and the low temperature cavity 115 arranged side by side. A first solenoid valve 41 is provided on the first partition 111 and a second solenoid valve 42 is provided on the second partition 112.

[0046] The pumping assembly 2 includes a return water pipe 21, a high temperature pipe 22, a low temperature pipe 23, and a first water pump 24. The first water pump 24 is located in the second chamber 12. The return water pipe 21 is used to connect the first water pump 24 and the test chamber 114. The high temperature pipe 22 is used to connect the first water pump 24 and the high temperature chamber 113. The low temperature pipe 23 is used to connect the first water pump 24 and the low temperature chamber 115.

[0047] There are two electromagnetic stirrers 3, which are respectively located in the high-temperature chamber 113 and the low-temperature chamber 115.

[0048] For example, for ease of description, the up-down and left-right directions are shown in the figure.

[0049] Within the first cavity 11, the space is divided into a high-temperature cavity 113, a test cavity 114, and a low-temperature cavity 115 arranged in the left-right direction by a first partition 111 and a second partition 112 arranged at intervals.

[0050] A first solenoid valve 41 is provided on the first partition 111 to control the flow between the high-temperature chamber 113 and the test chamber 114. The first solenoid valve 41 is located in the middle of the first partition 111, that is, the distance between the first solenoid valve 41 and the top of the first partition 111 is half the vertical dimension of the first partition 111.

[0051] A second solenoid valve 42 is provided on the second partition 112 to control the flow between the cryogenic chamber 115 and the test chamber 114. The second solenoid valve 42 is located in the middle of the second partition 112, that is, the distance between the second solenoid valve 42 and the top of the second partition 112 is half the vertical dimension of the second partition 112.

[0052] In addition, a first water pump 24 is installed in the second chamber 12 to drive fluid circulation. A return water pipe 21 connects the first water pump 24 to the test chamber 114 to achieve fluid return.

[0053] The high-temperature pipe 22 connects the first water pump 24 to the high-temperature chamber 113 so that the water in the test chamber 114 can be circulated to the high-temperature chamber 113; the low-temperature pipe 23 connects the first water pump 24 to the low-temperature chamber 115 so that the water in the test chamber 114 can be circulated to the low-temperature chamber 115.

[0054] To further improve the uniformity of the fluid in the high-temperature chamber 113 and the low-temperature chamber 115, this invention also provides electromagnetic stirrers 3 in the high-temperature chamber 113 and the low-temperature chamber 115 respectively. Through the action of the electromagnetic stirrers 3, the stability and consistency of the temperature field in the high-temperature chamber 113 or the low-temperature chamber 115 are ensured.

[0055] The testing apparatus 100 of this utility model, through precise control of the temperature and fluid circulation within each chamber during the test, can efficiently complete multi-temperature zone testing of the test sample. The specific test process is as follows:

[0056] First, place the test sample in the test chamber 114, and fill the low temperature chamber 115 and high temperature chamber 113 with water according to the test requirements. Wait for the water temperature in the high temperature chamber 113 and low temperature chamber 115 to reach the target temperature. During the waiting process, start the electromagnetic stirrer 3 to ensure that the water temperature in the high temperature chamber 113 or low temperature chamber 115 is consistent.

[0057] Then, once the water temperature in the high-temperature chamber 113 reaches the current temperature, the first solenoid valve 41 is activated, and the water in the high-temperature chamber 113 flows into the test chamber 114 to immerse the test sample. Since the first solenoid valve 41 is located in the middle of the first partition 111, nearly half of the water in the high-temperature chamber 113 will enter the test chamber 114.

[0058] After the test sample has been soaked for a preset time, the first solenoid valve 41 is closed, and then the first water pump 24 is started and pumps the water in the test chamber 114 back to the high-temperature chamber 113 through the return water pipe 21 and the high-temperature pipe 22.

[0059] Next, the first water pump 24 stops running, and then the second control valve is opened so that water in the low temperature zone can enter the test chamber 114. After the test sample has been soaked for a preset time, the second solenoid valve 42 is closed, and then the first water pump 24 is started and pumps the water in the test chamber 114 back to the low temperature chamber 115 through the return water pipe 21 and the low temperature pipe 23.

[0060] Then, the process is repeated several times, alternating the flow of water from the high-temperature chamber 113 and the low-temperature chamber 115 to the test chamber 114, thereby immersing the test sample.

[0061] The testing instrument 100 also includes a controller 9, which is electrically connected to the first solenoid valve 41, the second solenoid valve 42, the first water pump 24 and the electromagnetic stirrer 3, so that the working process of the testing instrument 100 can be controlled by setting a program in the controller 9.

[0062] Optionally, the test instrument 100 also includes a water level detector, which is located in the test chamber 114 to detect the water level in the test chamber 114, so that the controller 9 can know whether there is water in the test chamber 114, thereby facilitating the switching between high-temperature water flow and low-temperature water flow.

[0063] The testing instrument 100 of this embodiment features a compact structure and high space utilization. Firstly, it incorporates a first chamber 11 and a second chamber 12 arranged vertically. The first chamber 11 contains a high-temperature chamber 113, a testing chamber 114, and a low-temperature chamber 115, while the second chamber 12 houses a first water pump 24. Secondly, the testing instrument 100 automatically and alternately delivers high-temperature and low-temperature water to the testing chamber 114, achieving a high degree of automation and eliminating the need for manual testing, thus improving testing efficiency. Furthermore, the switching frequency and immersion time between high and low temperatures can be flexibly adjusted according to testing requirements, making it suitable for various multi-temperature zone testing scenarios.

[0064] The testing instrument 100 of this utility model has the advantages of compact structure, convenient operation and high degree of automation.

[0065] In some embodiments, such as Figure 1 As shown, the testing instrument 100 includes a sample fixing plate 5 and a drain outlet 6. The sample fixing plate 5 is located inside the testing chamber 114, and the sample fixing plate 5 is spaced apart from the bottom wall of the testing chamber 114.

[0066] The drain outlet 6 is located on the bottom wall of the test chamber 114 and below the sample fixing plate 5. The return water pipe 21 is connected to the test chamber 114 through the drain outlet 6.

[0067] For example, during the test, the test sample is fixed to the sample fixing plate 5. When it is necessary to withdraw the water from the test chamber 114, the water will flow from the drain 6 below the sample fixing plate 5 into the return pipe 21, and finally return to the low-temperature chamber 115 or the high-temperature chamber 113. Because there is a gap between the sample fixing plate 5 and the bottom wall, the water can pass smoothly, and the test sample is always firmly fixed on the sample fixing plate 5 and will not be affected by the water flow. Moreover, because the water flow at the drain 6 is relatively strong, when the first water pump 24 draws water from the test chamber 114 through the return pipe 21, a water flow with a certain speed and pressure will be formed near the drain 6. This high-speed water flow can directly impact the test sample placed on the sample fixing plate 5, thus posing a higher challenge to the sealing performance of the test sample.

[0068] In some embodiments, such as Figure 1 As shown, the high-temperature tube 22 includes a first section 221 and a second section 222. The first section 221 is located in the second cavity 12 and is connected to the first water pump 24.

[0069] One end of the second segment 222 is connected to the first segment 221, and the other end of the second segment 222 passes through the bottom wall of the high-temperature chamber 113 and extends into the high-temperature chamber 113. The second segment 222 is sealed to the bottom wall of the high-temperature chamber 113.

[0070] For example, when the first water pump 24 starts, the water flow is first transported through the first section 221 to the second section 222, and then injected into the high-temperature chamber 113 via the second section 222. The second section 222 and the bottom wall of the high-temperature chamber 113 are connected in a sealed manner to prevent water leakage from the high-temperature chamber 113.

[0071] In some embodiments, such as Figure 1 As shown, the cryogenic tube 23 includes a third section 231 and a fourth section 232. The third section 231 is located in the second cavity 12 and is connected to the first water pump 24.

[0072] One end of the fourth segment 232 is connected to the third segment 231, and the other end of the fourth segment 232 passes through the bottom wall of the low temperature cavity 115 and extends into the low temperature cavity 115, and the fourth segment 232 is sealed to the bottom wall of the low temperature cavity 115.

[0073] For example, when the first water pump 24 starts, the water flow is first transported through the third section 231 to the fourth section 232, and then injected into the cryogenic chamber 115 via the fourth section 232. The fourth section 232 and the bottom wall of the cryogenic chamber 115 are connected in a sealed manner to prevent water leakage from the cryogenic chamber 115.

[0074] In some embodiments, such as Figure 1As shown, the testing instrument 100 includes a circulation component, which includes a second water pump 71, a first pipe 72, and a second pipe 73. The first pipe 72 is located inside the testing chamber 114 and is connected to the second water pump 71.

[0075] The second pipe 73 is connected to the second water pump 71. Both the second pipe 73 and the second water pump 71 are located in the high-temperature chamber 113, or both the second pipe 73 and the second water pump 71 are located in the low-temperature chamber 115.

[0076] For example, the second water pump 71 is installed in the test chamber 114 or the high temperature chamber 113, or the second water pump 71 is installed in both the test chamber 114 and the high temperature chamber 113.

[0077] The first pipe 72 is installed inside the test chamber 114 and connected to the second water pump 71, and is used to guide the water flow in the test chamber 114 to the high temperature chamber 113 or the low temperature chamber 115.

[0078] When the test sample is immersed in high temperature, the second water pump 71 is used to realize the circulation of water between the test chamber 114 and the high temperature chamber 113, thereby improving the effect of high temperature immersion and the uniformity of temperature.

[0079] When the test sample is immersed at low temperature, the second water pump 71 is used to realize the circulation of water between the test chamber 114 and the low temperature chamber 115, thereby improving the effect of low temperature immersion and the uniformity of temperature.

[0080] By adding a circulation component, the testing instrument 100 device of this utility model embodiment further enhances the ability to accurately control the temperature inside the testing chamber 114.

[0081] In some embodiments, such as Figure 1 As shown, the testing instrument 100 includes a heating element 1131 and a first temperature sensor 1132, both of which are located inside the high-temperature chamber 113.

[0082] For example, the heating element 1131 provides a stable heat source for the fluid in the high-temperature chamber 113, and rapidly increases the temperature of the water flow in the high-temperature chamber 113 through an efficient heat conduction mechanism, ensuring that the high-temperature chamber 113 can reach and maintain the target temperature.

[0083] The first temperature sensor 1132 is used to detect the temperature change in the high-temperature chamber 113 in real time and feed the data back to the controller 9 so as to dynamically adjust the working state of the heating element 1131. Moreover, the controller 9 can determine whether the water temperature in the high-temperature chamber 113 has reached the target temperature based on the value of the first temperature sensor 1132.

[0084] The coordinated operation of the heating element 1131 and the first temperature sensor 1132 enables the high-temperature chamber 113 to establish a stable temperature field in a short time, providing a reliable high-temperature environment for sample testing in the test chamber 114. By setting the heating element 1131 and the first temperature sensor 1132 in the high-temperature chamber 113, the testing instrument 100 device of this utility model embodiment significantly improves the stability and reliability of high-temperature testing.

[0085] In some embodiments, such as Figure 1 As shown, the test instrument 100 includes a cooling element 1151 and a second temperature sensor 1152, both of which are located in the low-temperature chamber 115.

[0086] For example, the cooling element 1151 provides a stable cold source for the fluid in the cryogenic cavity 115, ensuring that the cryogenic cavity 115 can reach and maintain the target temperature.

[0087] The second temperature sensor 1152 is used to detect the temperature change in the low-temperature chamber 115 in real time and feed the data back to the controller 9 so as to dynamically adjust the working state of the cooling component 1151. Moreover, the controller 9 can determine whether the water temperature in the low-temperature chamber 115 has reached the target temperature based on the value of the second temperature sensor 1152.

[0088] The coordinated operation of the cooling element 1151 and the second temperature sensor 1152 enables the low-temperature cavity 115 to establish a stable temperature field in a short time, providing a reliable low-temperature environment for sample testing in the test chamber 114. By setting the cooling element 1151 and the second temperature sensor 1152 in the low-temperature cavity 115, the testing instrument 100 device of this utility model embodiment significantly improves the stability and reliability of low-temperature testing.

[0089] Optionally, a third temperature sensor 1141 is provided in the test chamber 114. The third temperature sensor 1141 is used to detect the water temperature in the test chamber 114 and is electrically connected to the controller 9.

[0090] In some embodiments, such as Figure 1 As shown, the pumping assembly 2 includes a third solenoid valve 43 and a fourth solenoid valve 44. The third solenoid valve 43 is mounted on the high-temperature pipe 22 and is used to control the flow of water between the test chamber 114 and the high-temperature chamber 113. The fourth solenoid valve 44 is mounted on the low-temperature pipe 23 and is used to control the flow of water between the test chamber 114 and the low-temperature chamber 115. The controller 9 is electrically connected to the third solenoid valve 43 and the fourth solenoid valve 44 to control their operation.

[0091] In some embodiments, such as Figure 1As shown, the testing apparatus 100 includes a cover 8 and an electric push rod, with the cover 8 rotatably connected to the housing 1. One end of the electric push rod is rotatably connected to the cover 8, and the other end is rotatably connected to the housing 1. The cover 8 is hinged to the housing 1, and the electric push rod is provided between the cover 8 and the housing 1, thereby facilitating the opening and closing of the housing 1.

[0092] In some embodiments, such as Figure 1 As shown, the testing apparatus 100 includes thermal insulation cotton, and the surface of any one of the cover 8, the box 1, the first partition 111, and the second partition 112 is provided with thermal insulation cotton. For example, the thermal insulation cotton is used to reduce heat transfer, thereby improving the thermal insulation performance of the testing apparatus 100.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A testing instrument, characterized in that, include: The enclosure has a first cavity and a second cavity, the second cavity being located at the bottom of the first cavity. The first cavity is provided with a first partition and a second partition arranged at intervals to restrict the high-temperature cavity, the test cavity, and the low-temperature cavity arranged side by side. The first partition is provided with a first solenoid valve, and the second partition is provided with a second solenoid valve. A pumping assembly, comprising a return water pipe, a high-temperature pipe, a low-temperature pipe, and a first water pump, wherein the first water pump is disposed in the second cavity, the return water pipe is used to connect the first water pump and the test cavity, the high-temperature pipe is used to connect the first water pump and the high-temperature cavity, and the low-temperature pipe is used to connect the first water pump and the low-temperature cavity; An electromagnetic stirrer, wherein there are two electromagnetic stirrers, and the two electromagnetic stirrers are respectively located in the high-temperature chamber and the low-temperature chamber.

2. The testing apparatus according to claim 1, characterized in that, The testing apparatus includes: A sample fixing plate is disposed inside the test chamber, and the sample fixing plate is spaced apart from the bottom wall of the test chamber; The drain outlet is located on the bottom wall of the test chamber and below the sample fixing plate. The return water pipe is connected to the test chamber through the drain outlet.

3. The testing apparatus according to claim 1, characterized in that, The high-temperature tube includes: The first section is located inside the second cavity and is connected to the first water pump; The second segment has one end connected to the first segment, and the other end of the second segment extends into the high-temperature cavity after passing through the bottom wall of the high-temperature cavity, and the second segment is sealed to the bottom wall of the high-temperature cavity.

4. The testing apparatus according to claim 1, characterized in that, The cryogenic tube includes: The third section is located inside the second cavity and is connected to the first water pump; The fourth segment has one end connected to the third segment, and the other end of the fourth segment extends into the low-temperature cavity after passing through the bottom wall of the low-temperature cavity, and the fourth segment is sealed to the bottom wall of the low-temperature cavity.

5. The testing apparatus according to claim 1, characterized in that, The testing apparatus includes a circulation component, which comprises: Second water pump; The first pipe is located inside the test chamber and is connected to the second water pump; The second pipe is connected to the second water pump. Both the second pipe and the second water pump are located inside the high-temperature chamber, or both the second pipe and the second water pump are located inside the low-temperature chamber.

6. The testing apparatus according to any one of claims 1-5, characterized in that, The testing instrument includes a heating element and a first temperature sensor, both of which are located inside the high-temperature chamber.

7. The testing apparatus according to any one of claims 1-5, characterized in that, The testing instrument includes a cooling component and a second temperature sensor, both of which are located inside the low-temperature chamber.

8. The testing apparatus according to any one of claims 1-5, characterized in that, The pumping assembly includes: A third solenoid valve is installed on the high-temperature tube; The fourth solenoid valve is located on the cryogenic tube.

9. The testing apparatus according to any one of claims 1-5, characterized in that, The testing apparatus includes: A lid, which is rotatably connected to the housing; An electric push rod, one end of which is rotatably connected to the cover and the other end of which is rotatably connected to the box.

10. The testing apparatus according to claim 9, characterized in that, The testing instrument includes thermal insulation cotton, and the thermal insulation cotton is provided on the surface of any one of the cover, the box, the first partition and the second partition.

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